U.S. Judge in Colorado Refuses to Exclude Patent Expert Witness in Action Against Google

Case: Potter Voice Technologies LLC v. Google, Inc., et al., No. 12–cv–01096–REB–CBS, U.S. District Court, District of Colorado; March 19, 2014 Background: Potter Voice Technologies LLC owns patent number 5,729,659 (the ′659 patent). The patent describes a method and apparatus for controlling a digital computer using oral input. Potter alleges that BlackBerry Voice Commands, Google

ByKristin Casler

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Published on June 23, 2014

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Updated onJune 22, 2020

Case:

Potter Voice Technologies LLC v. Google, Inc., et al., No. 12–cv–01096–REB–CBS, U.S. District Court, District of Colorado; March 19, 2014

Background:

Potter Voice Technologies LLC owns patent number 5,729,659 (the ′659 patent). The patent describes a method and apparatus for controlling a digital computer using oral input. Potter alleges that BlackBerry Voice Commands, Google Voice Search, Google Voice Actions and Windows Speech Commands infringe the ′659 patent when these software products are used on mobile phones.

Moreover, the defendants assert that the means-plus-function claims in the patent do not describe a sufficient structure to accomplish the stated function.

Patent Expert Witness:

In support of its claim construction brief, Potter submitted the declaration of David Klausner. Klausner opined that a person of ordinary skill in the art at the time of the patent would have understood algorithms specified in the patent to be the structures associated with the means-plus-function claims at issue. Microsoft argued that Klausner’s opinions should be excluded because he is not qualified to give opinions in the area of associative computing and because some of his opinions are conclusory. Microsoft also argues that Klausner’s opinion is comprised of conclusory, unsupported assertions that will not assist the court in construing the disputed claim terms.

Admissibility of Patent Expert Witness:

Judge Robert E. Blackburn for the U.S. District Court for the District of Colorado concluded that Klausner has ample specialized knowledge, skill, experience, training, and education in the area of computer science generally and in the area of associative computing specifically that qualify him to testify. The judge also said any issues about his qualifications go to the weight to be given his testimony, not admissibility.

Further, Klausner does not just state conclusions, the judge said. Instead, he cites particular language and figures in the patent as specifying the algorithms.

“Such conclusions are sufficiently reasoned and specific for purposes of Rule 702 and are not merely conclusory,” the judge held. “To the extent there are hiatuses or other flaws in the analysis and conclusions of Mr. Klausner, those gaps or flaws go to the weight and credibility to be accorded the opinions and not to their admissibility.”

Findings stated rationale and ratiocination for Klausner’s conclusions sufficiently reasoned and specific for purposes of Federal Rule of Evidence 702. Consequently, the judge denied Potter’s motion to exclude his testimony.

About the author

Kristin Casler

Kristin Casler

Kristin Casler is a seasoned legal writer and journalist with an extensive background in litigation news coverage. For 17 years, she served as the editor for LexisNexis Mealey’s litigation news monitor, a role that positioned her at the forefront of reporting on pivotal legal developments. Her expertise includes covering cases related to the Supreme Court's expert admissibility ruling in Daubert v. Merrell Dow Pharmaceuticals Inc., a critical area in both civil and criminal litigation concerning the challenges of 'junk science' testimony.

Kristin's work primarily involves reporting on a diverse range of legal subjects, with particular emphasis on cases in asbestos litigation, insurance, personal injury, antitrust, mortgage lending, and testimony issues in conviction cases. Her contributions as a journalist have been instrumental in providing in-depth, informed analysis on the evolving landscape of these complex legal areas. Her ability to dissect and communicate intricate legal proceedings and rulings makes her a valuable resource in the legal journalism field.

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